[TRNSYS-users] Unglazed collector with specific parameters

[Rajaa Badaoui]

Hello everybody;

I am looking for an unglazed collector type, within i can enter parameters
of the standard EN 12975-2 : bu, b1, b2 (respectively collector efficiency
coefficient (m-1s), heat loss coefficient (Wm-2K-1) and collector
efficiency coefficient (Wsm-3K-1)).

I found the types 553 and 559 but i can't find the documentation,
apparently the model relies on algorithms supplied by the solar collector
text: "Solar Engineering of Thermal Processes by Duffie and Beckman".

Where can I find this document? and what's the difference between type 553
and 559 ?

Thanks in advance for any information/advice;


    Rajaa.
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